Decreasing the oxidizer particle size increases the burn rate in a solid rocket. prove this using mathematics. hint: assume the particles are spheres of radius 1 (lcm, 1 m, 1 inch, whatever, you don't need units) and make the new particles some fraction of that.

If there was no gravity then their would be no downword force on the football to have it return the the grownd, and if there was no friction (mainly air friction) then there would be no opposing force the stop the ball from moving through the air allowing the ball to travle ∞.

Sorry i don’t know what to do